I keep getting “Oxygen transport” questions wrong in Breathing & Exchange of Gases. What's the trap?
thinking oxygen mostly dissolves in the plasma.
The usual trap: thinking oxygen mostly dissolves in the plasma. How to avoid it: only a little O₂ dissolves in plasma; haemoglobin carries the rest. Go back to the definition — most oxygen is carried by haemoglobin in red blood cells as oxyhaemoglobin.
Key point
Oxygen transport
Common mistake
thinking oxygen mostly dissolves in the plasma.
Memory tip
only a little O₂ dissolves in plasma; haemoglobin carries the rest.
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